b. A series of measurements are undertaken to obtain the heights of 20 students. The data...
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b. A series of measurements are undertaken to obtain the heights of 20 students. The data is shown in the table below.. Gender F M M M M M M M F F F F F M M M F F M ΣΣ M Height (cm) 123.6 160.2 171.4 177.2 196.6 180.1 209.9 182.4 171.2 168.0 206.4 163.2 179.2 190.4 176.4 210.6 150.4 172.8 189.8. 198.0 Expression for mean: i) Mean = (x1 - x2-x3- ii) Mean= (x1+x2 + x3+ iii) Mean = (x1+x2 + x3+ iv) Mean = (x1+x2 + x3 + Error (t cm) 0.2 0.3 0.2 0.2 800 xn)/n + xn)/n + xn)/(n+1) + xn)/(n^2) 0.2 02 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.2 0.2 0.2 Separately calculate the mean heights of males and females in this sample. 0.2 0.2 0.2 0.2 Highlight which one of the following expressions represents the calculation you have made. Calculate the standard deviation (SD) of the female height data. [4] [2] [5] b. A series of measurements are undertaken to obtain the heights of 20 students. The data is shown in the table below.. Gender F M M M M M M M F F F F F M M M F F M ΣΣ M Height (cm) 123.6 160.2 171.4 177.2 196.6 180.1 209.9 182.4 171.2 168.0 206.4 163.2 179.2 190.4 176.4 210.6 150.4 172.8 189.8. 198.0 Expression for mean: i) Mean = (x1 - x2-x3- ii) Mean= (x1+x2 + x3+ iii) Mean = (x1+x2 + x3+ iv) Mean = (x1+x2 + x3 + Error (t cm) 0.2 0.3 0.2 0.2 800 xn)/n + xn)/n + xn)/(n+1) + xn)/(n^2) 0.2 02 0.2 0.2 0.2 0.2 0.3 0.3 0.2 0.2 0.2 0.2 Separately calculate the mean heights of males and females in this sample. 0.2 0.2 0.2 0.2 Highlight which one of the following expressions represents the calculation you have made. Calculate the standard deviation (SD) of the female height data. [4] [2] [5]
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